J. M. BROWNING. FIREARM. APPLICATION FILED APB..23, Patented Aug. 19, 'Ew. Invan imr. fgégwg

Transcription

1 J. M. BROWNING. FIREARM. APPLICATION FILED APB..23, Patented Aug. 19, Ew ii Invan imr. fgégwg

2 10 + (Erica _ "JQHN u. BROWNING, or OGDEN, UTAH. FIREARM. I. Speci?cation of Lettersfatenf. To. (11% whom it: may? concern: Be it knownvthat I, Jon}: M. BROWNING, a citizen 043 the United States, residing, in. Ogden, in; the county of Weber and State o? Utah, have- inventedv certain new and use?ul improvements in Firearms, ofr which the following is» a speci?cation, reference being, had to the accompanying drawings, forming 20 a paint hereof. _ The invention- relates generally to autos maitxie?rearms oil that: description in which al?topenaoions, except the actuation cat? the trigger for?ring, are automatically effected by the: energy of the recoil or the breech closing pemt. The invention particularly relates to noneh improvements in?rearms of the class deacnilmdv in: the-_ United: States Patent No: 98%,51391, granted! to: me February 14, 19M! said patient covering many of the?eatures 0-» ~ the complete?rearm which-1? have herein de scribed and? illustrated with the, object of enabling: my present invention andl the ob jeots thereof to be- understood. Those fem tunes which are: common _to the two con stnuctions are-reibrred toherein- only as far. asis; necessary tokex-plain the- present inven 1. the entire arm" may be assembled. or disk - tion, but the- description; which follows re lates particularly totlhe novel1imprcved!fea\-. tunes of. this case. Thomain object of the present invention is toiprodlice an improvedi?rearm of this class specially adapted for the military service by being: reliable, accurate, strong and? vabso lutely-saiie under all-conditions, while simple - in construction, not liable to get out ofior er and inexpensive of manufacture:,this ob-~ ject is attained- by simpli- ing the mecha nism- of the arm,by provid g an improved construction of certain, parts thereof, there by enabling each o? these parts to perform several. distinct?unotions, and thus reducing the number, of the component parts, and; by giving to,alirhthe" parts, such form- that they may be- put ifhpliwe or removed and mounted! without requiring2 the use of any tools. - The; embodiment 0 my improvements represented in-theaccompanying drawingsis a magazine pistol, such as-is shown andide scribed in my said Patent No. 948,519; but) it) will! be understoodl that If do not intend: to restrict) the presentlinvention to a magazine PatentedAug;19, Application?led.tpr? 28, Serial No. 763,0. - pistol, nor to any particular kind of?re~ arm, nor to the combination of the several features: in a single?rearm. In the accompanying drawings: Figure 1, is; a le?t-hand side elevation oil the - pistol; with the breech-slide closed- and the hammer at rest, not cocked. Fig. 2,is a rear endi view _ oaithe- pistol. Fig. 3-, is a: view similartogig.v 1,, of the upper rear portion of the pi u, giant with the closed; breech-slide locked? and itheehammer-cocked and locked. Fig. 4., isa; glongitudinal vertical section 0:6 therear porn gticn: of the pistol showing the firing- mecha i niism l and the safety mechanisms, the-breechl: islide being closed and the hammer} cooked; ands locked; Fig; 5, represents one" oi. the sidehplates of the pistol gri - detached, and one of the studs and the ocking pimde~ tached, by which the side-plates are- remove ably attached to the grip; I being- a view oii the innerside and 2: a; longitudinal ver-- tical and; an section end view oil the: of sideplate, the stud, 3 and a side 4 a side view and» end-- View oil the locltinmpint Fig-f. 16-, represents the; combined sli e-leck- andi lhammer-lock detached, 1 being an edgevilew !?romi below, 2 an inner side view of? the slide-lbck-, 3 a cross section of the integrall?ocking-stud, thereon, on a line parallel5 to gandl just beneath the plate-like bodyv of the lock, and 4 a side view of a portion of the 8,5 Tleft side of the pistol frame, showing the aperture therein for the entranceloil the stud, and the undercut front edge foiiseeuringthe stud-in: the frame, Fig: 7,represents~a-sid_e view and\ a rear view o? thehammer de 90 tac hed, and a side view and rear view of the hammen-strut detaoliedi Fig. 8, represents the two pistons and! the- spiral spring, des tachod, by which the pivot-pin-handle and the slide-look and hammer-lock are yield:i inglyv.heldlinl place. Fig;~ 9, represents side view. and a» front) viewaof- the-combined? trigger; andr. safetysspring, sear-spring, and grip~lever-spring, detached: 7 Similar letters refer to similhr- parts throughout the severzilp views. The pistol represented in{ they drawings: has three main parts, tho-frame-mthe barrel 6 mounted: uponv the?riime, and the breech L slide 0, which slides-irearwardf and? forward coiliandcf the reaction-spring r-athe frame ex tends downward in formiof the handle or grip 95

3 _ I - 1,2; J I I.> and as. grip-is- theseat forrthefdetachi-i If."Talble cartridge magazine :2: of usual construc - tion, in which-cartridges are held. one above..theotherupon a spring-follower by which they are fed upward to the receiver. In front of the grip thetrigger t is located in trigger-guard, while the hammer q and other members of the?ring mechanism and In front of the butt-piece u the trigger, safety mechanisms are arranged in rear of and safety-spring t2, the sear-spring r2 and the grip-lever-spring r3 are seated. In rear l0 the grip. I > : The barrel 5 is attached at its rear end to of thehammer g and above the butt+piece u. the frame by ailink pivoted in a depending the grip-lever w is secured in the grip by lug ofthe barrel, the lower part of the linkv the pivot-pin hi, and the grip-lever-spring bemg attached to the frame by the pivot 73 yieldingly holds the grip-lever w_1n its is pin 11?tted transversely through the frame. rear position in which a forward pro]ect10n 80 7 and the link, thus securing link and barrel of the grip lever stands in rear of vthe con-v movably to the frame. necting piece t1 of the trigger and locks the : The rear part of the breech-slide. 0 forms trigger againstoperation, while the lower the breech-bolt 0 and forward? thereof the portionof the grip-leverw projects from. breech-slide; :iforms; > an integral. extension, the rear of the grip. When the grip is 85 which incloses the barrel and carries at its grasped, as in they act ofv?ring, the grip forward end a bushing h- for keepingthe lever is pressed into the grip, thereby auto muzzle of the barrel in place.»the for-, matically releasing the trigger for operation ward portion of the breech-slidec is closed without requiring attention. -.,, 1 p at the bottom byv aqdepending smaller tube All the parts thus far referred to maybe extendingsome distance to the: rear and and are here shown as of the same construc is forming the abutment c2 with its axis par "alleii to theb reechslide and its front closed vby the lug).. From the abutment c2 rear :0 ward t e sides of thebreech-slide overlap vthe sides of the-7 frame, and are provided with integral lengthwise grooves and ribs interlocking with corresponding ribs and grooves in the sides oft-he frame by which, the breech-slide is vertically secured upon the frame and guided in its movements thereon.. At its front the frame a has the extension 10 a2 for receiving the abutment (:2 of the breech-slide, which moves therein when the breech-slide recoils upon the frame. In the extension (12 of the frame and the abutment (:2 of the breech~slide the spiral reaction spring is arranged as usual, exerting its ten sion against the plug f to yieldingly hold the breech-slide in its forward position in ~ which the breech-bolt a closes the breech of the barrel. I 1,0, I The pivot-pin 2 projects from. the left side of the frame where it carries the rearwardly " extending handle 7 resting against the side of the frame, by which the removal of the pivot-pin z and thereby the release for re moval of the barrel and breech-slide in for ward direction from the frame are effected. The breech-bolt c1 carries a?ring-pin and an extractor of usual form, and the hammer g, sear 1 and safety 8 are pivotally mounted in the frame, so that when released by the operation of the trigger t, while the breech slide is in the forward position, the hammer will strike the?ring-pin which transmits the blow to the primer of the cartridge. The rear of the grip is closed by the butt piece to sliding from below into the grip, and secured therein by the pin u?tted transversely through the grip and butt piece; within the butt-piece u the spiral main-spring o is seated, the strut g1 piv otally attached to thehammer g transmit ting the tension of the main-spring o to the hammer. tion andmode of: operation as fully set forth in my said Patent No. 984,519, and forming, no part of the present invention require no vfurtherv description or explanation herein, except so far as certain features will be re ferred to hereinafter. Heretofore pistols of this classwere pro-3 vided with automatic safety devices which made it impossible to?re one or several shots unless a cartridge was in the barrel, a charged magazine in the grip and all parts were in the proper closed andv locked condition, the hammer cooked and the grip properly grasped to hold the pistol in the?ring position. If, with the pistol thus made ready for instant use, the occasion for?ring or for continued?ring had passed, and it was desired to make the pistol tem porarily safe for carrying, it was necessary to lower the hammer to the safety position, and special means were provided for en abling the lowering of the hammer to be performed, if necessary, by the use of only the hand holding the pistol. Experience, however, has shown that the exigencies of 1 active military service make it at times nec essary that the pistol be carried-for a longer or shorter time with a loaded cartridge in the barrel, a charged magazine in its seat and with the hammer cocked, so as to still remain ready for instantly?ring a maxi mum number of shots withoutrequiring any initial movement, except the pulling of the 90, 110. trigger. At the same time, it is as neces 1 sary that the pistol can be made safe to posi tively prevent its accidental discharge while 7 being so carried.,for ful?lling, as nearly as possible, these necessary but contradictory" requirements, an additional manually op 1

4 20 erabed combined slide-lock and hammer lock of novel construction and with addi tional. functions has been provided on the pistol, which serves to at will lock the breech-slide and the?ring mechanism and make the pistol positively safe against dis charge though a cartridge is in the chamber and the hammer is cocked, or to at will re lease these parts and make the pistol ready for?ring; with this added device the look ing or releasing of the slide and of the ham mer require only a slight pressure by the thumb of the hand grasping the grip of the pistol, without demanding such attention, care and exertion as are required for cock ing the hammer or for releasing and lower _ ing the same. The combined slide-lock and hammer-lock consists of the plate-like body k pivotally secured upon the left side of the frame in rear of the grip by its integral pivot-pin k1 which passes transversely through the frame and through the grip-lever w, thus serving also to pivotally secure the grip-lever in the frame. Above the plate is an angular re cess c3 has been cut in the lower edge of the breech-slide which corresponds with the for ward upper corner of the plate and stands above the same when the breech-slide is in the forward closed position, so that the plate is may be turned upward upon its pivot to enter the recess 03 and thereby to positively lock the breech slide in the forward closed position. By its location the plate is is just above and within easy reach of the thumb of the hand grasping the grip of the piston, and upon the outside at the upper forward corner of the plate a lateral projection 2 provides a thumb piece by which the plate It: may be at will turned upward into its opera~ tive slide-locking position, or downward into the releasing position by applying a slight pressure with the thumb in the desired di rection, without requiring more than the slightest attention or effort. From the inner surface of the slide-lock or plate Z: a stud Z03 extends through an open ing in the left side of the frame inward to a position in rear of the lower arm of..the sear 1 and below the hub of the hammer 9, see Figs. 1, 3 and Ll. The stud k3 is cylindri cal, except at its free inner end, where for some distance a segment has been cut away from its forward side. With the slide-lock in its lower inoperative position, as in Fig..1, the cut-away portion of the stud 3 keeps the same clear of the path, of the sear and. of the hammer, both of which are thus free for operation; but when the slide-lock is raised to lock theslide, as in Fig. 3, the stud 7:3 is thereby moved to the rear of the lower arm of the sear, positively prevent ing the same from being operated to re lease the cooked hammer, Fig. 4. A recess is provided in the hub of the hammer into ; 082 which a portion of the stud 3 enters when inthe raised position, see Fig. 4, therebylthe hammer is locked independently of its sup- -. port by the sear, so that even under violent blows against the exposed part of the ham mer, which might break the point of the sear, the hammer cannot move. When the hammer is down, not cooked, the recess in its hub not being above the stud 103, the slide- lock cannot be raised to the locking position until the hammer is again cocked. In Fig. 6 at 4 is shown the shape of the aperture in the left side of the frame through which the stud 7c is entered into the frame when the slide-lock is being placed in posi tion; this aperture is elongated to permit the 891 necessary upward and downward movements of the stud and of the slide-lock for lock~ ing or releasing the slide and the hammer, but the aperture is covered by the slide-lock in both positions. The central part of the aperture is wider than the upper and lower parts, a segmental recess centrally in the forward edge of the aperture being provided for allowing the cylindrical portion of the stud k3 to pass into the frame. Above and below this recess in the forward edge of the aperture, the side wall of the frame is undercut- and reduced in thickness, as is in dicated by dotted lines in Figs. 1, 3 and 6, to correspond in thickness with the groove cut in the front side of the cylindrical por tion of the stud 103, just beneath the plate or slide-lock is, see Fig. 6 at 1 and 3. The undercut forward edge of the aperture and the bottom of thegroove in the stud being formed concentric to the pivot 101 of the slide-lock is, they interlock and movably se cure the slide-lock in the frame in all posi tions except when the slide-lock is midway between its upper and lower positions, in this central position only the slide-lock may be removed from the frame the stud 3 then passing out through the central recess in the edge of the aperture. As the integral pivot-pin 7c? of the slide-lock is the pivoton which the grip-lever w is mounted in the frame, the securing in place of the slide- lock also secures the grip-lever in place,v and by the removal of the slide-lock the grip-lever also is released for removal from the frame. Moreover, the ivot-pin g2 of the hammer and the pivot~p1n r1 of thesear and safety are?tted to enter into the frame from the left side toward the right side, and each pin has a head of slightly larger diameter on its left end, so that they can be removed from the frame only by being. pushedfrom the right toward the left side thereof. With the siide-lock la in its place it covers both of these pivot pins Q2 and 9*, thus securing them in the frame, and on the removal of the slide-lock these pivot-pinsmay be readily pushed out and thereby the ham mer g, sear 1 and safety 8 are released for ? 1,. 1

5 4 removal from the frame without the use of ", any tool. 11 order to kee the slide-lock k in either the raised or the owered position, a spring actuated piston Z1 is provlded, the rounded point of which bears-against the forward edge of the slide-lock 7c, and enters one of the two shallow. recesses in said edge corre sponding with the point of the piston in 10 each of the positions of the slide-lock, and serving to yieldingly hold the slide-lock in either position to which it may be moved. The vpiston Z1 and the spiral spring Z3 press ing it rearward, arev seated in a small hori zontal tube Z attached to the left side of the frame. above the grip, in front of the slide lock k, so that the slightly protruding point of the piston Z1 may enter the recesses, see Figs. 1 and3; 20 As heretofore constructed and shown and described in my said prior patent, the handle j of the ivot-pin i was provided with a small spring-pressed piston seated in the hollowrear rtion of the handle, and held therein for imited movement by a trans verse pin, the protruding point of the pis tonv bearing a amst a small rounded stud?xed in the si e of the frame, thereby hold ing the handle yieldingly in either of the positions to which it may be moved. In the present improved construction the spring, piston and locking-pin in the handle j and the stud; on the frame have been eliminated, and the rear end of the imperforate handle 7, provided with two shallow recesses, is located in front of the forward end ofithe tube Z. In this end of the tube l a second small piston lzis seated, and the spiral s ring Z3 in the tube tends to press the roun ed point- of this piston Z2 forward into contact with the handle 7, so as toyieldingly hold the same in position, 7 Figs. 1 and 3. The forward end of the piston Z2 is reduced in diameter forming a shoulder on the piston which bears against a_ corresponding shoulder. in the inner bore of the-tube 1 near its forward end, by this arrangement the forward piston Z2 is pre vented from- being thrown forward from the tube when the pivot-pin z and the handle 7 aredetacherlfrom the frame. The pistons Z14 and Z2 are each reducedin diameter in their inner portions. nearest to the spiral - spring Z3 which?ts upon these reduced parts,,. and. the exterior diameterof the spring Z3 is small enough to freely move in the tube Z, to prevent the pistons Z1 and Z2 and the Z3 from being thrown rearwardly. spring. from the tube Z when the slide-lock k is re moved, the spring I is bent at the center of its length so that- its forward and rearward halves form an obtuse angle instead of being i in a straight line, see Fig. v8. When the spring Z3 and the two pistons Z1L and Z2 are together fully inserted into the tube Z, with 1,0,882 the reduced part of each piston seated in one of the-en s of the spring, the tension of the spring lengthwise will hold the pistons yieldingly with their points protruding from the tube Z, because the pistons,?tting loosely in the tube, guide the ends of the spring therein and keep them from contact with the tube; whereas the bent center of the spring is pressed by the tension of the same against the inside of the tube and causes at that point su?icient friction to yieldingly hold spring and pistons in the tube, but to allow them to be at will-drawn from the rear of the tube. By this arrangement, there fore, these parts are held in place without requiring the usual locking-pin," and it allows their ready assemblage and removal without requirin the use of any tools. All arts of t e safety mechanisms and of the 121 ring, mechanism mounted in the rear part of the frame have thus been shown to be heldx securely therein by the slide-lock k when in its place, while they become readily removable by the.removal of the slide-look. An accidental release and dis placement of the slide-lock itself is pre vented by the arrangement under which it can be removed only at one point, midway between its lower and its raised, osition, because, while it requires but a slig t effort to fully raise or lower the slide-lock, it be ing yieldingly held in either of these posi tions, it requires considerable care and effort to move it to and hold it in the central position and there to withdraw it laterally from the frame; therebeing nothing to arrest the slide-lock except at the proper limits of its movements, a casual stopping mid way between these limits will not occur, because the pressure of the spring-actuated piston Z1 agalnst the front edge of the slide lock tends to cause it to com lete its ver tical movements, and also ten s to prevent, any lateral movement of the slide-lock away from the side of the frame. While the spiral main-spring v is seated within the butt-pieceu, like that shown and described in my said prior patent, the upper and lower pistons atthe ends of the main spring and the small transverse pin- for se curing them in the vbutt-piece, have been eliminated by the present construction. The lower end of the seat of the spring in the butt piece allows the lowest coil of the main-spring to partly project into the hole which passes transversely through the sides of the grip and through the butt-piece at, the lower end of the same, in which the - pin u1 is?tted which secures the butt-piece in the grip of the pistol, Figs. 1, 2 and 4:. As is shown in Figs. 4 and 5, the pin ul has two annulargrooves into which the lowest.coil of the main-spring artl enters, so that the spring itself yieliding y holds the j pin a1 in its place in the grip. Both ends

6 nor/trees of the pin u project laterally from the grip and the pin may be readily removed by pressure upon its right end. The strut g1 is pivotally connected with the hammer, but instead of being attached thereto, as heretofore, by a separate pivot pin, the strut g1 carries at its upper end integral trunnions which?t into the pivot holes in the hammer, see Figs. 4 and 7, and through the left side of the divided rear part of the hammer a slot is cut from the pivot-hole rearward, through which the trunnions of the strut may be entered into their seats in the hammer, the strut being guided in a radial direction from the rear toward the same until the trunnions enter the holes, then turning the strut on the trunnions downward until it enters the cen tral vertical slot in the hammer, the trun nions are locked in their seats and the strut is secured to the hammer, see Fig. 4, thus dispensing with theseparate pivot-pin, and with the use of tools which were required for driving out the pivot-pin for the re moval of the strut, whereas the strut, as here represented, may be as readily detached from the hammer by raising it to the radial position, without requiring the use of tools. Near the lower end the strut g1 has a collar and below the same a part which?ts into the main-spring, so that, when in place, the spring bears against the collar and the strut directly transmits the tension from the main spring to the hammer. Below the part?t ting into the main-spring, the end of, the strut Q1 has been given the form of a punch of small diameter. This part may be used in dismounting the pistol, after the pin u, the butt-piece u, the slide-lock k, the grip lever w and the hammer-strut g1 have been removed in the manner hereinbefore ex plained, the small end of the strut may serve to release the hammer, sear and safety for removal by pushing their pivot-pins out of the frame. As shown in Figs. 4: and 9, the trigger and safety-spring t2, the sear-spring r2 and the grip-lever-spring 18 are formed as sepa rate leaves, but are integral by being com bined at their lower ends into one common body, which having at its end a forward pro jection?tting into a transverse slot in the rear wall of the magazine-seat in the grip, is secured therein endwise or vertically, while the front of the butt-piece u, when in place, securely locks the spring against rearward displacement. The sear-spring r2 is provided at the upper end and on the outer part of its width with a forward pro jection by which the correct introduction and location of the combined springs in the grip is insured, there being no rooni for the placing of this forward projection except at the left side of the lower part of the sear. As seen in Figs. 1 and 5, the side-plates of the grip are secured to the frame by two studs yl, one of which is represented de tached in Fig. 5 at 3, two of the studs are?rmly attached by their shouldered ends in each side of the frame, one at the top and the other near the bottom of the side-plates y, where each stud forms a lateral projec tion provided with a larger T-shaped down wardly projecting head. Each side-plate 3/ has in its inner face a circular recess for the reception of the lower stud, and, extend ing downward from the recess, a T-shaped slot corresponding to the head and neck of the stud. In the upper end of each side plate y a similar T-shaped slot is cut for the upper stud. To attach theside-plate to the grip, it is placed on the side of the grip slightly below its normal position, with the lower stud in the lower recess and the upper stud just above the upper slot, then the side-plate is pushed upward so that the two studs will enter the slots, and?rmly lock the side-plate to the grip of the frame. At the lower rear corner each side-plate has a partly circular recess for the reception of the projecting portion of the locking-pin 11}, by driving this pin into its place both side plates are positively locked to the grip. For removing the side-plates the pin u is re moved, then each side-plate may be readily moved downward to be thereby released from the studs, when it may be removed from the grip. It will be evident that various features of this invention may be employed independ ently of the rest, and in?re-arms of a dif ferent kind from that which I have described herein, and that various changes in form and arrangement of the parts may be made with out departing from the spirit of the inven tion. What I claim, and desire to secure by Let ters Patent, is: 1. In a?rearm, the combination of a frame, a breech-slide sliding on the frame,?ring mechanism mounted in said frame, a grip-lever pivoted in said frame and having an extension to lock or release said?ring mechanism, and a slide~lock pivotally mount ed on said frame for engaging or releasing a shoulder on said breech-slide for locking said slide in its forward position and releas ing same, said slide-lock having an integral pivot-pin?tted transversely through said frame and through said grip-lever, whereby said slide-lock is pivoted in said frame and pivotally secures said grip-lever in said frame. 2. In a?rearm, the combination of a?ring mechanism comprising a hammer and a sear pivoted in said frame, a grip-lever pivoted in said frame and having an exten sion to lock or release said?ring mechanism, and a slide-lock pivotally mounted on said B

7 10 8. frame for engaging or releasing a shoulder on said breech-slide for lockin said slide in its forward position i and re easing same, said slide-lock having an integral pivot-pin?tted transversely through said frame and through said grip-lever whereby said slide lock is pivoted in said frame and pivotally secures said grip-lever in said frame, said slide-lock also having an inward projection extending into the frame for locking the hammer in its cocked position. 3. In a?rearm,, the combination of a?ring mechanism comprising a hammer and a scar pivoted in said frame, a grip-lever pivoted in said frame and having an exten sion to lock or release said?ring mechanism, and a slide-lock pivotally mountedon said frame for engaging or releasing a shoulder on said breech slide for locking said slide in its forward position and releasing same, said slide-lock having an integral pivot-pin?tted transversely through said frame and through said grip-lever whereby said slide lock is pivoted in said frame and pivotally secures said grip-lever in said frame, said slide-lock also having an inward projection extending into the frame for locking the sear when it holds the hammer in cocked po sition. > 4. In a?rearm, the combination of a?ring mechanism comprising a hammer and a sear pivoted in said frame, a grip-le ver pivoted in said frame and having an ex tension to lock or release said?ring mecha nism, and a slide~lock pivotally mounted on said frame for engaging or releasing a shoulder on said breech-slide for locking said slide in its forward position and releas ing same, said slide-lock having an integral pivot-pin?tted transversely through said frame and through said grip-lever, whereby said slide-lock is pivoted in said frame and pivotally secures said grip-lever in said frame, said slide-lock also having an inward projection extending into the frame for lock ing the hammer in its cocked position and for locking the sear against releasing said hammer. 5. In a?rearm, the combination of a?ring mechanism comprising a hammer and a sear pivoted in said frame, a slide-lock piv otally mounted on said frame for engaging or releasing a shoulder on said breech-slide for locking said slide in its forward position and releasing the same, said slide-lock hav ing an inward projection extending into the frame for engaging and locking the hammer in its cocked position and for engaging and locking the sear against releasing said l1am~ mer. 6. In a?rearm, the combination of a 1,0,532 pivot-pins, and a slide-lock pivoted on said frame having a shoulder for engaging said breech-slide to lock it in its forward position and having a plate~like body to cover and secure in place the pivot-pins of said?ring mechanism. 7. In a?rearm, the combination of a frame, a breech-slide sliding on the frame?ring mechanism comprising a hammer and a sear secured in said frame by pivot-pins?tted transversely through said frame and held therein in one direction by having heads of increased diameter, and a slide- lock pivoted on said frame having a shoul 80 der for engaging said breech-slide to lock it in its forward position, and having a plate-like body to cover said heads and se~ cure in place the pivot-pins of said?ring mechanism In a?rearm, the combination of a pivot-pins, and a slide- lockpivotally mounted on said frame having a shoulder for engag 90 ing said breech-slide to lock it in its forward position,~and having a plate-like body to cover and secure in place the pivot-pins of said?ring mechanism and also having an inward projection extending into the frame 95 for locking the?ring mechanism in cocked position when the said slide-lock is moved into position to lock the slide. 9. In a?rearm, the combination of a I00 pivot-pins, a grip-lever pivoted in said frame and having an extension to lock or re lease said?ring mechanism, and a slide-lock pivotally mounted on said frame having a shoulder for engaging said breech-slide to lock it in its forward position, and having I an integral pivot-pin?tted transversely through said frame and through said grip- lever, and also having a plate-like body to cover and secure in place the pivot~pins of said?ring mechanism. 10. In a?rearm, the combination of a pivot-pins, and a slide-lock pivot-ally mount ed on said frame having a shoulder for en gaging said breech~slide to lock it in its for ward position, and having a plate-like body to cover and secure in place the pivot-pins of said?ring mechanism, and also having an inward projection extending into the frame for locking the?ring mechanism in cocked position, said projection having a recessed portion for interlocking with the frame whereby said slidelock is movably secured on said frame. 11. In a?rearm, the combination of a 11b 1 1 1

8 5 20. pivot - pins, and a slide- lock pivotally mounted on said frame having a shoulder for engaging said breech-slide to lock it in its forward position, and having a plate-like body to cover and secure in place the pivot pins of said?ring mechanism, and having also an inward projection extending into the frame for looking the?ring mechanism in cocked position, said projection having a recessed portion for. interlocking with the frame, and said frame having an elongated aperturewidened at its central part, where by said projection may be inserted or re moved from said aperture at its central part when the slide-lock is in an intermediate position, and the recessed portion in said in ward projection interlocks with the frame when said slide-lock is in its locking position or in its unlocked position. i 12. n a?rearm, the combination of a?ring mechanism secured in said frameby pivot-pins, and a slide-lock pivotally mount ed on said frame having a shoulder for en gaging said breech~slide to lock it in its forward position, and having a plate-like body to cover and secure in place the pivot pins of said?ring mechanism, and having also an inward projection extending into the frame for locking the?ring mechanism in cocked posit-ion, said projection having a recessed portion for interlocking with the frame, and said frame having an elongated aperture widened at its central part, where by said projection may be inserted or re moved from said aperture at its central part when the slide-lock is in an intermediate position, and the recessed portion in said in ward projection interlocks with the frame when said slide-lock is in its locking posi tion, or in its unlocked position, and a spring-pressed member engaging the slide; lock for yieldingly holding it in lockedv or unlocked position. _ 13. In a?rearm, the combination of a frame, a member pivoted on said frame so as to be movable to one position or another, a second member pivoted on said frame so as to be movable to one position or another, a tube-like inclosure on the frame located between said two members, a spring in said inclosure with a piston at each end for yieldingly engaging said members and hold ing them in either position. 14. In a?rearm, the combination of a frame, a member pivoted on said frame" so as to be movable to one position or another, a second member pivoted on said frame so as to be movable to one positionor another, a tube-like inclosure on the frame located between the two nfembers, a spring in said inclosure with a piston at each end for yieldingly engaging said members, said spring having a bend in the portion between the pistons so as to frictionally engage the wall of the inclosure and hold the spring in position in the inclosure while the two ends of the spring are guided by the pistons so as to operate freely and independently.. In a?rearm, the combination of a frame, a member pivoted on said frame so as to be movable to one position or another, a second member pivoted on said frame so as to be movable to one position or another, a tube-like inclosure on the frame located between said two members, a spring in said inclosure with a piston at each end for yieldingly engaging said members, one of said pistons having a shoulder engaging a projecting portion in the inclosure to con?ne the spring and pistons in the inclosure at one end, said spring and pistons being con?ned at thelotvher end by engagement with one of said members a?rearm, the combination of a frame, a breech-slide sliding on said frame,?ring mechanism mounted in said frame, a barrel connected to said frameby a pivot pin, a rearwardly projecting handle for said pivot-pin, a slide-lock pivotally mounted on said frame, a tube-like inclosure on the frame located between said handle and said slide-lock, a spring in said inclosure with a pistonat each end for yieldingly engaging said handle and said slide-lock. " " 17. In a?rearm the combination of a frame, a breech- slide slidingon said frame,?ringmechanism secured in said frame by pivot-pins, a member pivoted on said frame, a slide-lock pivoted on said frame having a plate-like body for covering and securing in place the pivot-pins of the?ring mechanism and having an inward projection for remov ablv securing it to the frame, a tubeélike inclosure on said frame located between said member and said slide lock, and a spring in said inclosure _with a piston at each. end for yieldingly engaging said mem- her and said slide-lock. 18. In a?rearm, the combination of a frame, a breech-slide sliding on said frame, pivot-pins, a member pivoted onsaid frame, a slide-lock pivoted on said frame, having a plate-like body forcovering and securing in place the pivot-pins of the?ring mecha nism and having an inward projection? for removably securing it to the frame and for locking the?ring mechanism in cocked po sition, and a tube-like inclosure on said frame located between said member and said slide-lock, and a spring in said inclosure with a piston at each end for yieldingly en gaging said member and said slide-lock. 19. In a?rearm, the combination of a frame, a hammer, a butt-piece, a pin for re movably securing said butt~piece in said frame, grooves in said pin, a coiled main spring carried in the butt-piece and having its lowest coil entering the grooves in said $ G

9 8 1,0,682 CH 10 pin so as to yieldinglysecure the pin in place, and a strut between the upper end of said main-spring and the hammer. 20. In a?rearm, the combination of a frame, a butt-piece removably secured in said frame, a main-spring carried in the butt-piece, a strut having trunnions at its upper end and connected at its lower end with said main-spring, a hammer having at its rear portion two vertical walls sepa rated by a space, pivot-holes in said walls for said trunnions and a slot in one of the walls extending from one of the pivot-holes whereby the trunnions may be entered in the pivot-holes and the strut between the walls when the strut is in line with the slot, and the strut con?ned between the walls with the trunnions in the pivot-holes when the strut is turned downward toward opera tive position. 21. In a?rearm, the combination of a frame, a butt-piece removably secured in said frame, a main-spring carried in the butt-piece, a strut having at its lower end a collar resting on top of the main-spring and a projection entering into said main sprmg, said strut having trunnions at its upper end, a hammer having at its rear portion two vertical walls separated by a. space, pivot-holes in said walls for said. trunnions and a slot in one of the walls ex tending from one of the pivot-holes where by the trunnions may be entered into the pivot-holes and the strut between the walls when the strut is in line with the slot, and the strut con?ned between the walls with the trunnions in the pivot-holes when the strut is turned downward toward operative position. 22. In a?rearm, the combination of a frame, a hammer, a sear, a trigger, a grip lever, a spring for the sear, a spring for the trigger anda spring for the rip-lever, said three springs being formed as separate leaves at their upper ends and merging into a common integral body at their lower ends, said body having near its lower end a trans verse projection and said frame having a slot to receive said projection, whereby the three springs are lengthwise and laterally kept in position in the frame. 23. In a?rearm, the combination of a frame, a hammer, a scar, a trigger, a grip lever, a spring for the sear, a spring for the trigger and aspring for the grip-lever, said three springs. being formed as separate leavesat their upper ends and merging into a common integral body at their lower ends, one of said spring-leaves having a forward projection at its upper end, ant a space in the frame for receiving said forward pro jection. 24. In a?rearm, the combination of a framehaving a grip, a side-plate for the grip, T-shaped slots in the side-plate ex tending downwardly from suitable open ings in said side-plate, studs on the frame having T-shaped heads for entering said openings and engaging said slots, and a pin extending through and from the frame and yieldingly held therein for engaging the said side~plate and securing it in position on the frame with said heads engaged with said slots.. In a?rearm, the combination of a frame having a-grip, a side p1ate on each side of the grip, a T-shaped slot in the top of each side-plate, and a T-shaped slot ex tending downward from a suitable opening \near the bottom in each side-plate, studs on the frame having T-shaped heads for enter ing and engaging said slots, and a pin ex tending through and projecting from the sides of the frame and yieldingly held there in for engaging and securing both side plates in position on the grip with said heads engaged with said slots. 26. In a?rearm, the combination of a frame having a grip, a butt-piece removably seated in the grip and a coiled main~spring carried in said butt-piece, a side-plate for each side of the grip, a T-shaped slot in the top of each side-plate, and a T-shaped slot extending downward from a suitable open ing near the bottom of each side-plate, studs on the frame having T-sha-ped heads for en- - tering and engaging said slots, and a pin extending through the grip and the butt piece for securing said butt-piece in said grip and projecting from the sides of said grip for engaging and securng both side plates in position on the grip with said heads engaging said-slots, said pin having grooves for the entrance of the lowest coil of said main-spring, whereby said pin is yieldingly held in place by the main-spring. This speci?cation signed and witnessed. this 14th day of April A. D JOHN M. BROWNING. In the presence of MATTHEW GALr, H. O. WILLIAMS